Cultivator and the like.



F. A. STANDEN.

CULTIVATOR AND THE LIKE.

APPLICATION FILED DEC.2.19H.

1 9 1 9&UY9 Patented Sept. 12, 1916.

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CULTIVt \TOR AND THE LIKE. APPLICATION HLED DEC-2| 1911.

MQWOW. PatentedSept. 12,1916.

2 SHEETSSHEET 2- cqa'tnessesx Inventor m x l I t h scraps am FRANK ALVIN STANDEN, OF IVES, ENGLAND, ASSIGNOR 'lO TUTBURY ENGINEER- ING COMPANY, LIMITED, 0F TUTBURY, ENGLAND.

CULTIVATOR AND THE LIKE.

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Specification of Letters Patent.

Patented eept. I2, 1916.

b all whom it may concern Be it known that I, FRANK ALVIN STAN- DEN, a subject of the King of Great Britain, residing at St. Ives, in the county of Huntingdon, England, have invented certain new and useful Improvements in or Relating,

to Cultivators and the like, of which the following is a specification.

This invention relates to cultivators and similar machines of the kind wherein a number of resiliently mounted tines are rendered adjustable for the purpose of varying the depth to which they project or dig into the ground and of varying the inclination or pitch thereof. The chief object of this invention is to provide an improved construction for connecting the adjustable and resilient tines to the machine and also to generally improve the construction and arrangement of various parts of the machine to render the same stronger and more convenient for operating than heretofore.

According to this invention the tines are pivotally mounted upon the wheel axle or shaft and are provided with extensions beyond their pivots which extensions engage with springs through the medium of a transverse member or bar that can be moved against the said springs to vary the angle or pitch of the tines. The said bar is operated by a hand lever which is centrally arranged for the purpose of obtaining a more uniform adjustment of'the tines than heretofore. This centrally arranged lever co operates with .a notched quadrant in the usual manner, the quadrant being situated on a central member of the machine frame which member is connected to the wheel axle or shaft. The other members of the machine frame extend from the end of the central frame member at the head or front of the machine ,to the ends or thereabout of the wheel axle or shaft. The provision of this central member greatly strengthens the machine and prevents the wheel axle or shaft from being strained when the drafting pull thereon is excessive owing to the hard ground which the machine may encounter at times.

In order that the said invention may be clearly understood and readily carried into effect I will describe the same more fully with reference to the accompanying drawings in which Figures 1 and 2 are respectively a side eleends, thus constituting a hollow bar.

vation and a plan of the essential parts of the improved cultivator. Figs. 3 and 4c are respectively part sectional elevation and plan, on a larger scale illustrating the mode of securing the tines. Fig. 5 is a part section elevation of the levers for adjusting the tines and the wheels.

a a represent the main frame members, 6 represents the central frame member, which members are connected to the shaft or axle 0.

(Z zZ represent the tines which are loosely mounted on the shaft and have the extensions (Z resiliently connected to the transverse member or bar 0 as aforesaid.

The members a. a extend from the head or front of the machine and terminate in bosses a a which are arranged on the shaft ,0 at or near the ends thereof, and the central. member 1) extending from the head 7 also terminates in a boss 0 surrounding the shaft 0 at the center. Transverse stay members Z) are provided approximately midway between the head f and shaft 0 and parallel to the latter.

The tines in the example shown are formed with bosses (Z through which the shaft 0 passes, beyond which bosses the extensions (Z pass under the transverse bar or member 0. A bolt (Z is pivoted to each extension cl and passes through the transverse bar a which may be in the form of two flat bars Figs. 2, 3 and 4: connected at their A plate (Z shaped to embrace the bar 6 is passed over the said bolt J" and a spring (Z bearing on the plate is held in position and {is adjusted by the nut cl on the end of the bolt. Any upward movement of the blade or point end of the tines is effected against the action of the springs (Z The central tine is forked. at its pivot end and is formed with two bosses and extensions which lie on each side of the boss Z). The hollow bar 0 permits of the tines being held in different positions on the shaft 0, and the tines are held in any set position on the shaft by collars lying adjacent to the bosses d In other words, the tines may be adjusted bodily, by moving them laterally and clamping them in changed position.

A transverse shaft h is arranged parallel to the shaft 0 and is rotatably supported in bearings h mounted on the frame members aand 1). Two cranks or levers i are keyed to the said shaft 71. which cranks 2' are con nected by rods or bars 2" to hell crank levers i loosely mounted on the shaft 0. The bell crank levers are also shaped to pass under and through thebar e to be rigidly secured thereto by bolts or the like, (see Fig. 5). A handlever j having a usual form of a spring controlled pawl for engaging with notches in the quadrant j is keyed to the shaft h and when operated rotates the shaft 0 thus moving the cranks 2' and connecting rods 2" to turn the bell crank levers on the shaft 0 and raise the bar a consequently pulling up the tine extensions cl and varying the inclination of the points or blades to any desired extent to suit the ground on which the machine is working. Each wheel 9 is mounted on a stud g secured in a crank g in the usual manner.

The shaft 0 and the cranks g carrying the wheels 9 may be rotated or moved around the center of the wheel by operating the hand lever is keyed or screwed to the shaft, thereby lowering the points or blades relatively to the wheels in the usual manner. The hand lever 79 has a spring pawl for en gaging with notches in a quadrant is loosely mounted on the shaft 9, and is arranged to be operated from the driver seat Z or from the rear of the machine.

The drivers seat is arranged on one side of the machine as shown in Fig. 2 and is supported on an inclined bar Z secured at its lower end to the transverse bar 6 The seat being arranged in this position permits of both the operating levers j is being arranged centrally or approximately so and enables them to be conveniently operated by the right hand of the driver. The front running wheel f is mounted at. the head in the usual manner, and this wheel as well as the rear wheels 9 are provided with renewable bushes.

l/Vhat I claim and desire to secure by Letters Patent of the United States is 1. In a cultivator or similar machine the combination with a shaft supported in a frame, of tines pivotally mounted on said shaft to move in a vertical plane independently of the said frame, springs which are engaged by said tines when the latter are angularly displaced on the shaft, and an adjustable common support or abutment for the said springs.

2. In a cultivator or similar machine the combination with a shaft supported in a frame, of tines pivotally mounted on said shaft to move in a vertical plane independently of the frame, springs which are engaged by said tines when the latter are angularly displaced on the shaft, a common support or abutment for the springs, and means for adjusting the position of the said support or abutment.

3. In a cultivator or similar machine, the combination with an axle or shaft supported posed between said extensions and transverse bar, which springs are engaged by said extensions when the tines are angularly displaced on said shaft.

4. In a cultivator or similar machine, the combination with an axle or shaft, of a frame comprising two outer members and a. central member which support said shaft at its ends and middle, tines directly pivoted on said shaft to move in a vertical plane independently of said frame, and springs engaged by said tines when the latter are angularly displaced on said shaft.

5. In a cultivator or similar machine, the combination with an axle or shaft supported in a frame, of tines pivotally mounted on said shaft to move in a vertical plane independently of the frame, a transverse bar, a separate spring for each tine connected to the tine and interposed between said tine and bar, each of which springs is compressed by its tine when the latter is angularly displaced on its shaft.

6. In a cultivator or similar machine, the combination with an axle or shaft, of tines directly pivoted on said shaft to move in a vertical plane independently of said machine, extensions 011 said tines, a transverse bar, means whereby said bar can be adjusted independently of the machine, spring connections between said extension and tine and compressed against said bar when the tines are angularly displaced on said shaft, and means for moving said bar to angularly displace said tines to vary their angle or pitch.

7. In a cultivator or similar machine, the combination with an axle or shaft, of three frame members having bearings to directly support said shaft, tines directly pivoted 011 said shaft to move in a vertical plane independently of said frame members, extensions on said tines, a transverse bar connected to said extensions by springs, one for each tine, each of which latter can move independently of the others and of the transverse bar, a hand lever, and connecting links from said lever to said bar to move the latter to vary the angle or pitch of the tines.

8. In a cultivating or similar machine the combination with a rear wheel axle, of tines pivoted thereto and having extensions beyond their pivots, an adjustable bar, bolts pivoted to said extensions on the tines and passing through said bar, plates resting on the upper surface of said bar, a coil spring surrounding each bolt, and bearing on said plate, and means for compressing said spring to draw said extension tightly against the underside of the adjustable bar.

9. In a cultivating or similar machine, the combination with a wheel axle, of a crank at each end of said axle, a stud on each crank on which the rear wheels are rotatably mounted, frame members extending from the head, or front of the machine to the wheel axle, hearings in said frame members to support the said axle, tines pivoted to the wheel axle, an adjustable bar to which the tines are resiliently connected, a transverse rotary shaft connected to said adjustable bar, means for rotating the wheel axle to vary the position ofthe wheels relatively to the tines and means for rotating the transverse shaft to move the said adjustable bars to alter the angle or pitch of the tines.

10. In a cultivating or similar machine, the combination with a wheel axle, of a front running wheel and support therefor, of frame members extending from said sup port to the ends and center of the wheel axle, hearings in said frame members to support the wheel axle, cranks on the wheel axle carrying the rear wheels, tines pivoted on said axle, extensions on said tines beyond their pivots, and adjustable transverse hollow bar lying over the said extension, bolts connected to said extensions and passing through the hollow bar, a coil spring surrounding each bolt, means for compressing said spring against the hollow bar to resiliently secure the extensions thereto, a transverse rotary shaft, bell crank levers pivoted on said axle and secured to said hollow bar, means connecting the bell crank lever to the transverse rotary shaft, a centrally arranged hand lever secured to the transverse rotary shaft and cooperating with a notched quadrant on one of the frame members and a hand lever secured to said wheel axle, cooperating with a loose notched quadrant on the transverse rotary shaft.

In testimony whereof I aflix my signature in presence of two witnesses.

FRANK ALVIN STANDEN. Witnesses HENRY T. SMITH, CHARLES HENRY MARTELL.

Copies of this patent may be obtained for five cents each, by addressing the commissioner of Patents. Washington, D. G. 

